kingofqueenz

just do all maintence on the car, like a full tune-up, and if it doesn't fix the problem then check out those 02 sensors. Do the spark plugs, oil change, fuel filter, a bottle of fuel injector cleaner, and see if that does the trick. If it doesn't check to see if your injectors are clogged, this is what happend to my car recently, i have 49k miles and i had to buy new injectors, what i did was unbolt my fuel rail and have my injectors still attached and i cranked the car while someone checked to see if my injectors were spraying correctly, should be a cone shape, and only one was spraying correctly, i now changed all my injectors and the car is fine. Check your MAF sensor, those need cleaning from time to time and can hurt MPG. Check all the air in your tires that they are all 32psi.